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Anatomically fairly old dicotyledonous r...

Anatomically fairly old dicotyledonous root is distinguished formt eh dicotyleodnous stem by

A

absence of secondary xylem

B

absence of secondary phloem

C

presence of cortex

D

position of protoxylem

Text Solution

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The correct Answer is:
d
In dicotyledonous root , the condition of xylem is exarch as the protoxylem is away from the centre and metaxylem is towards the centre . In dicotyledonous stem , (e.g .Cucurbita), the condition of xylem is endarch as the metaxylem is away from the centre and protoxylem is towards the centre.
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